What is the gold standard test you would order to confirm the diagnosis of COPD in this patient?

An adult patient presents with complaints of acute onset of upper respiratory symptoms that started 2 weeks ago. Symptoms initially started with nasal drainage which resolved after 3 days, however the cough still persists. The cough started as dry but patient reports in the last couple days they are starting to cough up some purulent sputum and patient reports substernal burning pain with cough inspiration. On auscultation of there are  wheezes and rhonchi, loudest over the bronchial regions of the lungs. Which of the following medications would not be an appropriate treatment choice for this patient’s condition?

What is your recommendation for treatment?

What is your most likely differential diagnosis for this patient?

What are the recommended first line treatment options for this condition? (Select all that apply)

A patient presents with complaints of recurrent epigastric pain which occurs on an empty stomach (2 to 4 hours after a meal or in the middle of the night) and can be  relieved with food, antacids, or liquids (milk, ice cream). Where is the most likely location of this patient’s Peptic Ulcer Disease?

Which of the following is not a key treatment principle of asthma?

Which of the follow are risk factors for hospitalization due to Bronchiolitis in a pediatric patient?  (Select all that apply)    

What is the most likely cause of this patient’s diarrhea?

Another patient presents to the clinic post bar fight and is noted to have swelling around the right orbit. The patient is conscious but unable to see out of the right eye. You mechanically manipulate the eyelid and determine an open globe rupture. What is your initial treatment?